Rubber printing plate with printing roller convenient to replace for printing machine

Abstract

The utility model relates to the technical field of printing devices, in particular to a rubber printing plate for a printing machine with a printing roller convenient to replace, which comprises a plate body mechanism, a roller body mechanism and rotating mechanisms, the roller body mechanism is positioned on the inner side of the plate body mechanism, the rotating mechanisms are positioned at two ends of the roller body mechanism, and the plate body mechanism comprises a printing plate. According to the printing roller convenient to replace and install, the protruding blocks are installed and detached in the grooves, so that the printing roller is convenient to replace and install, the clamping plates can be driven by the second clamping grooves to rotate through rotation of the adjusting shafts, printing patterns are fixedly installed on the outer sides of the printing plates, and the printing roller is convenient to replace and install. The operation is simple, the printing plate does not need to be glued, the printing roller and the printing plate are convenient to replace and install, meanwhile, the overall structure is simple and not prone to damage, the purchase cost is low, and it can be guaranteed that the use cost is not increased while replacement is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of printing devices, in particular to a rubber printing plate for a printing press, which is convenient for replacing a printing roller. Background Art

[0002] A printing press is a machine for printing text and images. Modern printing presses are generally composed of mechanisms such as plate mounting, inking, embossing, and paper feeding. Rubber printing plates are divided into lithographic plates, letterpress plates, gravure plates, ironplate plates, offset plates, and various liner plates according to their uses. Their structure consists of a surface layer of rubber, an elastic rubber layer, and different layers of rubber tape. They are made through processes such as lamination, continuous vulcanization, and polishing. Printing plates require a smooth surface, resistance to ink expansion, wear resistance, and excellent elasticity.

[0003] As disclosed in authorization publication number CN217099387U, a rubber printing plate for a printing press that facilitates replacement of a printing roller is disclosed, comprising: a printing plate body and a printing roller; the printing roller is connected to the inner wall of the printing plate body, and the printing plate body can print a pattern on a material surface; a baffle is connected to the surface of the printing roller; an externally threaded tube is connected to the surface of the printing roller; and a first slide groove is formed on the surface of the printing roller. In this rubber printing plate for a printing press that facilitates replacement of the printing roller, rotating the internally threaded tube drives the limit plate to move laterally, thereby allowing the printing plate body to be mounted on the surface of the printing roller; when the patterned plate drives the first bolt to move to the end position of the fixing groove, the first bolt is rotated. When the first bolt moves into the fixing groove, the position of the patterned plate is fixed; a docking block is inserted into the docking groove and the second bolt is positioned at the end position of the connecting hole. Rotating the second bolt allows the second bolt to move toward the connecting hole, and when the second bolt moves to the position of the connecting hole, the position is fixed.

[0004] However, the rubber printing plate mentioned in the patent has a cumbersome overall structure. Installation by bolts will result in a longer installation time. Moreover, when the rubber printing plate is replaced frequently, the friction frequency between the bolts and the screw grooves will increase, causing wear, thereby damaging the printing roller and making it unusable, which increases the cost of use. Utility Model Content

[0005] The purpose of the utility model is to provide a rubber printing plate for a printing press which is convenient for replacing a printing roller, so as to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A rubber printing plate for a printing press that is easy to replace a printing roller comprises a plate body mechanism, a roller body mechanism and a rotating mechanism, wherein the roller body mechanism is located inside the plate body mechanism, and the rotating mechanism is located at both ends of the roller body mechanism. The plate body mechanism comprises a printing plate, a printing pattern is fixedly mounted on the outside of the printing plate, and clamping plates are fixedly mounted on both ends of the printing plate.

[0008] Preferably, the roller mechanism includes a printing roller, grooves are provided at the left and right ends of the printing roller, a marking line is fixedly installed on the outside of the printing roller, a first card slot is provided on the lower side of the front end of the printing roller, and a card plate is movably installed in the first card slot.

[0009] Preferably, an adjusting shaft is movably installed in the middle of the front end of the printing roller, a second clamping groove is opened at the front end of the adjusting shaft, and a clamping plate is movably installed in the second clamping groove.

[0010] Preferably, a first fixing plate is movably mounted on the left end of the printing roller, a second fixing plate is movably mounted on the right end of the printing roller, and fixing screws are movably mounted on the rear sides of the first fixing plate and the second fixing plate.

[0011] Preferably, the left end of the adjusting shaft is movably mounted inside the front side of the first fixed plate, the left end of the adjusting shaft is fixedly mounted with a limit plate, and the left end of the limit plate is fixedly mounted with an adjusting block.

[0012] Preferably, the right end of the adjusting shaft is movably mounted on the front side of the left end of the second fixing plate, the right end of the second fixing plate is provided with a clamping groove, and a clamping screw is movably mounted in the clamping groove.

[0013] Preferably, the rotating mechanism includes a rotating shaft, a gear is fixedly mounted on the rear end of the rotating shaft, a bearing is fixedly mounted on the rear end of the gear, a bump is fixedly mounted on the front end of the rotating shaft, and the bump is movably mounted in the groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. A rubber printing plate for a printing press that is convenient for replacing a printing roller. The printing roller is conveniently replaced and installed by installing and removing the printing plate in the groove through a protrusion. The card plate can be driven to rotate by the second card groove by rotating the adjusting shaft, so that the printing plate is pulled and attached to the printing roller. The operation is simple and there is no need to glue the printing plate, so the printing roller and the printing plate can be conveniently replaced and installed.

[0016] 2. The rubber printing plate for a printing press that is easy to replace the printing roller has a simple overall structure that is not easy to damage and has a low purchase cost. While being easy to replace, it can ensure that the cost of use will not increase. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic structural diagram of the rotating mechanism and roller mechanism of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the plate mechanism of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the left and right ends of the adjustment shaft of the utility model.

[0021] In the figure: 101, plate mechanism; 102, roller mechanism; 103, rotating mechanism; 104, printing plate; 105, printing pattern; 106, card plate; 201, printing roller; 202, groove; 203, marking line; 204, first card slot; 205, adjusting shaft; 206, second card slot; 301, first fixed plate; 302, second fixed plate; 303, fixing screw; 304, limit plate; 305, adjusting block; 306, clamping groove; 401, clamping screw; 402, rotating shaft; 403, gear; 404, bearing; 405, bump. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 4 As shown, the utility model provides a technical solution:

[0024] A rubber printing plate for a printing press that facilitates replacement of printing rollers comprises a plate mechanism 101, a roller mechanism 102, and a rotating mechanism 103. The roller mechanism 102 is located inside the plate mechanism 101, and the rotating mechanism 103 is located at both ends of the roller mechanism 102. The plate mechanism 101 comprises a printing plate 104, a printing pattern 105 is fixedly mounted on the outside of the printing plate 104, and clamping plates 106 are fixedly mounted at both ends of the printing plate 104.

[0025] According to the above solution, the printing plate can be clamped on the printing roller by the clamping plate, and the ink can be transferred through the printing pattern to complete the printing.

[0026] In this embodiment, preferably, the roller mechanism 102 includes a printing roller 201, grooves 202 are provided at the left and right ends of the printing roller 201, an identification line 203 is fixedly installed on the outside of the printing roller 201, and a first card slot 204 is provided on the lower side of the front end of the printing roller 201, and a card plate 106 is movably installed in the first card slot 204.

[0027] With the above solution, the printing roller can be fixed by the groove, the printing plate can be conveniently positioned by the marking line, and the card plate can be clamped by the first card slot, so that the printing plate is fitted to the printing roller.

[0028] In this embodiment, preferably, an adjusting shaft 205 is movably installed in the middle of the front end of the printing roller 201 , a second card slot 206 is opened at the front end of the adjusting shaft 205 , and a card plate 106 is movably installed in the second card slot 206 .

[0029] Through the above scheme, the card plate can be installed through the second card slot, so that the printing plate is attached to the printing roller, and the card plate can be driven by the second card slot to rotate by rotating the adjustment shaft, so that the printing plate is attached to the printing roller.

[0030] In this embodiment, preferably, a first fixing plate 301 is movably mounted on the left end of the printing roller 201, a second fixing plate 302 is movably mounted on the right end of the printing roller 201, and fixing screws 303 are movably mounted on the rear sides of the first fixing plate 301 and the second fixing plate 302.

[0031] According to the above solution, the first fixing plate and the second fixing plate can be fixed to the left and right ends of the printing roller by fixing screws, and the adjusting shaft can be fixedly clamped and supported by the first fixing plate and the second fixing plate.

[0032] In this embodiment, preferably, the left end of the adjusting shaft 205 is movably mounted inside the front side of the first fixed plate 301 , the left end of the adjusting shaft 205 is fixedly mounted with a limit plate 304 , and the left end of the limit plate 304 is fixedly mounted with an adjusting block 305 .

[0033] Through the above solution, the adjusting shaft can be clamped by the limiting plate, and at the same time, the adjusting shaft can be prevented from being misplaced. The adjusting shaft can be rotated by twisting the adjusting block.

[0034] In this embodiment, preferably, the right end of the adjusting shaft 205 is movably mounted on the front side of the left end of the second fixing plate 302 , and a clamping groove 306 is provided at the right end of the second fixing plate 302 , in which a clamping screw 401 is movably mounted.

[0035] Through the above solution, the clamping screw can be installed through the clamping groove, and the adjusting shaft can be tightened by turning the clamping screw. The limiting plate is used to clamp the adjusting shaft between the first fixed plate and the second fixed plate.

[0036] In this embodiment, preferably, the rotating mechanism 103 includes a rotating shaft 402, a gear 403 is fixedly installed at the rear end of the rotating shaft 402, a bearing 404 is fixedly installed at the rear end of the gear 403, and a protrusion 405 is fixedly installed at the front end of the rotating shaft 402, and the protrusion 405 is movably installed in the groove 202.

[0037] With the above solution, the printing roller can be fixed by installing the protrusion in the groove, and the gear is driven by the transmission structure of the printing press, so that the rotating shaft is driven to rotate in the bearing, thereby driving the printing roller to rotate.

[0038] When using a rubber printing plate for a printing press that is easy to replace a printing roller according to this embodiment, the user installs the rotating shaft 402 inside the printing press so that the gear 403 is connected to the transmission structure of the printing press. Then, by controlling the printing press, the rotating shaft 402 drives the protrusion 405 to engage in the groove 202 so that the printing roller 201 is fixed, and the replacement and installation of the printing roller 201 is completed. After the printing roller 201 is replaced, the user engages the clamping plate 106 at one end of the printing plate 104 into the first clamping groove 204 and determines the position of the printing plate 104 by the marking line 203. At this time, the gear 403 is driven to rotate by the transmission structure of the printing press, so that the rotating shaft 402 rotates through the bearing 404 to drive the printing roller 201 to rotate. When the printing roller 201 rotates, the printing plate 104 The user applies downward pressure to fit the printing plate 104 and the printing roller 201. After the printing roller 201 rotates one circle, the card plate 106 at the other end of the printing plate 104 is inserted into the second card slot 206. The printing plate 104 is made of rubber, and the card plate 106 is made of hard plastic. At this time, the user rotates the adjustment block 305 to rotate the adjustment shaft 205. During rotation, the card plate 106 is clamped by the first card slot 204 and the second card slot 206, so that the card plate 106 pulls the printing plate 104. Then, the locking screw is tightened to clamp the adjustment shaft 205 between the first fixed plate 301 and the second fixed plate 302, so that the printing plate 104 is tightly fitted on the printing roller 201, completing the replacement and installation of the printing plate 104.

[0039] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A rubber printing plate for a printing press that facilitates replacement of a printing roller, characterized in that: The invention comprises a plate mechanism (101), a roller mechanism (102) and a rotating mechanism (103), wherein the roller mechanism (102) is located inside the plate mechanism (101), and the rotating mechanism (103) is located at both ends of the roller mechanism (102). The plate mechanism (101) comprises a printing plate (104), a printing pattern (105) is fixedly installed on the outside of the printing plate (104), and a clamping plate (106) is fixedly installed at both ends of the printing plate (104).

2. The rubber printing plate for a printing press that facilitates replacement of printing rollers according to claim 1, characterized in that: The roller mechanism (102) comprises a printing roller (201), grooves (202) are provided at the left and right ends of the printing roller (201), a marking line (203) is fixedly installed on the outside of the printing roller (201), a first card slot (204) is provided on the lower side of the front end of the printing roller (201), and a card plate (106) is movably installed in the first card slot (204).

3. The rubber printing plate for a printing press that facilitates replacement of printing rollers according to claim 2, characterized in that: An adjusting shaft (205) is movably installed in the middle of the front end of the printing roller (201), a second card slot (206) is provided at the front end of the adjusting shaft (205), and a card plate (106) is movably installed in the second card slot (206).

4. The rubber printing plate for a printing press with easy replacement of printing rollers according to claim 3, characterized in that: A first fixing plate (301) is movably mounted on the left end of the printing roller (201), a second fixing plate (302) is movably mounted on the right end of the printing roller (201), and fixing screws (303) are movably mounted on the rear sides of the first fixing plate (301) and the second fixing plate (302).

5. The rubber printing plate for a printing press with easy replacement of printing rollers according to claim 4, characterized in that: The left end of the adjusting shaft (205) is movably mounted inside the front side of the first fixed plate (301), the left end of the adjusting shaft (205) is fixedly mounted with a limit plate (304), and the left end of the limit plate (304) is fixedly mounted with an adjusting block (305).

6. The rubber printing plate for a printing press with easy replacement of printing rollers according to claim 5, characterized in that: The right end of the adjusting shaft (205) is movably mounted on the front side of the left end of the second fixing plate (302); a clamping groove (306) is provided on the right end of the second fixing plate (302); a clamping screw (401) is movably mounted in the clamping groove (306).

7. The rubber printing plate for a printing press with easy replacement of printing rollers according to claim 1, characterized in that: The rotating mechanism (103) comprises a rotating shaft (402), a gear (403) fixedly mounted on the rear end of the rotating shaft (402), a bearing (404) fixedly mounted on the rear end of the gear (403), a convex block (405) fixedly mounted on the front end of the rotating shaft (402), and the convex block (405) movably mounted in the groove (202).

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